body,
html {
  margin: 0;
}
ul {
  padding: 0;
  margin: 0;
  list-style: none;
}
.clearfix::after {
  content: "";
  display: block;
  clear: both;
}
h1,
h2,
h3,
h4,
h5 {
  margin: 0;
  padding: 0;
}
a {
  text-decoration: none;
  color: #000;
}
div {
  box-sizing: border-box;
}
